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DE69102324D1 - Thin film magnetic material and manufacturing method. - Google Patents

Thin film magnetic material and manufacturing method.

Info

Publication number
DE69102324D1
DE69102324D1 DE69102324A DE69102324A DE69102324D1 DE 69102324 D1 DE69102324 D1 DE 69102324D1 DE 69102324 A DE69102324 A DE 69102324A DE 69102324 A DE69102324 A DE 69102324A DE 69102324 D1 DE69102324 D1 DE 69102324D1
Authority
DE
Germany
Prior art keywords
manufacturing
thin film
magnetic material
film magnetic
thin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69102324A
Other languages
German (de)
Other versions
DE69102324T2 (en
DE69102324T4 (en
Inventor
Shinji Furukawa
Kazuki Oka
Akira Tanimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unitika Ltd
Original Assignee
Unitika Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unitika Ltd filed Critical Unitika Ltd
Application granted granted Critical
Publication of DE69102324D1 publication Critical patent/DE69102324D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
    • G08B13/2411—Tag deactivation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0304—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions adapted for large Barkhausen jumps or domain wall rotations, e.g. WIEGAND or MATTEUCCI effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • H01F10/13—Amorphous metallic alloys, e.g. glassy metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/18—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Physical Vapour Deposition (AREA)
  • Thin Magnetic Films (AREA)
  • Measuring Magnetic Variables (AREA)
DE69102324A 1990-03-23 1991-03-22 Thin film magnetic material and manufacturing method. Expired - Fee Related DE69102324D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7524790 1990-03-23

Publications (1)

Publication Number Publication Date
DE69102324D1 true DE69102324D1 (en) 1994-07-14

Family

ID=13570706

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69102324T Expired - Lifetime DE69102324T4 (en) 1990-03-23 1991-03-22 Thin film magnetic material and manufacturing method.
DE69102324A Expired - Fee Related DE69102324D1 (en) 1990-03-23 1991-03-22 Thin film magnetic material and manufacturing method.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69102324T Expired - Lifetime DE69102324T4 (en) 1990-03-23 1991-03-22 Thin film magnetic material and manufacturing method.

Country Status (5)

Country Link
US (1) US5181020A (en)
EP (1) EP0448114B1 (en)
JP (1) JPH04218905A (en)
DE (2) DE69102324T4 (en)
DK (1) DK0448114T5 (en)

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US5355120A (en) * 1992-10-09 1994-10-11 Security Tag Systems, Inc. Frequency-dividing-transponder tag
US5580664A (en) * 1992-12-23 1996-12-03 Minnesota Mining And Manufacturing Company Dual status thin-film eas marker having multiple magnetic layers
US5382345A (en) * 1993-02-16 1995-01-17 Industrial Technology Research Institute Apparatus for simultaneously coating a film of magneto-optical recording medium on a plurality of disk substrates
US6416880B1 (en) 1993-12-09 2002-07-09 Seagate Technology, Llc Amorphous permalloy films and method of preparing the same
US5405702A (en) * 1993-12-30 1995-04-11 Minnesota Mining And Manufacturing Company Method for manufacturing a thin-film EAS and marker
US5751256A (en) * 1994-03-04 1998-05-12 Flexcon Company Inc. Resonant tag labels and method of making same
US5532598A (en) * 1994-05-25 1996-07-02 Westinghouse Electric Corporation Amorphous metal tagging system for underground structures including elongated particles of amorphous metal embedded in nonmagnetic and nonconductive material
JPH08186019A (en) * 1994-11-02 1996-07-16 Unitika Ltd Magnetic marker
JP3372117B2 (en) * 1994-12-08 2003-01-27 ユニチカ株式会社 Magnetic marker and method for manufacturing the same
JPH08287369A (en) * 1995-04-13 1996-11-01 Unitika Ltd Magnetic marker and manufacture of rolled product arraning magnetic markers in lateral direction
US5729201A (en) * 1995-06-29 1998-03-17 International Business Machines Corporation Identification tags using amorphous wire
JP3321341B2 (en) * 1995-09-14 2002-09-03 科学技術振興事業団 Bistable magnetic element and method of manufacturing the same
FR2740109B1 (en) * 1995-10-20 1997-12-05 Sensormatic France Sa LID OR SLEEVE FOR BOTTLE OR CONTAINER WITH AN INTEGRATED MARKER FOR ELECTRONIC MONITORING, AND METHODS OF MAKING SAME
JPH09180936A (en) 1995-12-27 1997-07-11 Unitika Ltd Magnetic element
DE19604746A1 (en) 1996-02-09 1997-08-14 Esselte Meto Int Gmbh Securing element for electronic article surveillance
JPH09232141A (en) * 1996-02-28 1997-09-05 Unitika Ltd Magnetic element
US5940362A (en) * 1996-08-19 1999-08-17 Sensormatic Electronics Corporation Disc device having a magnetic layer overweighing the information signal pattern for electronic article surveillance
CA2216897A1 (en) 1996-09-30 1998-03-30 Unitika Ltd. Fe group-based amorphous alloy ribbon and magnetic marker
GB9621000D0 (en) * 1996-10-09 1996-11-27 Flying Null Ltd Magnetic tags and techniques
CA2218302A1 (en) * 1996-10-15 1998-04-15 Unitika Ltd. Magnetic device, and process and apparatus for producing the same
JP3352366B2 (en) * 1997-09-17 2002-12-03 株式会社ヒロセチェリープレシジョン Pulse signal generator
JP3679907B2 (en) 1997-09-18 2005-08-03 Ｈｓｔ株式会社 Pulse signal generator
US5973599A (en) * 1997-10-15 1999-10-26 Escort Memory Systems High temperature RFID tag
JP3431471B2 (en) * 1997-11-14 2003-07-28 株式会社ヒロセチェリープレシジョン Pulse signal generator
JP2001510670A (en) * 1997-12-05 2001-07-31 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Identification transponder
US6121878A (en) * 1998-05-01 2000-09-19 Intermec Ip Corp. System for controlling assets
JP3617604B2 (en) * 1998-09-18 2005-02-09 ヒロセ電機株式会社 Pulse signal generator
US6744153B2 (en) * 1998-09-18 2004-06-01 Hirose Electric Co., Ltd. Apparatus for and method of generating a pulse signal
DE19908966C1 (en) * 1999-03-01 2000-09-28 Dorma Gmbh & Co Kg Rotary panel door drive has position sensor with planar coil, evaluation electronics, metal element with variable distance wrt. coil and eccentrically increasing or decreasing radius
US6559632B1 (en) * 2000-04-11 2003-05-06 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for determining linear and angular velocity of a moving body
JP3615468B2 (en) * 2000-07-06 2005-02-02 ヒロセ電機株式会社 Pulse signal generator
US6962648B2 (en) * 2003-09-15 2005-11-08 Global Silicon Net Corp. Back-biased face target sputtering
US20060249370A1 (en) * 2003-09-15 2006-11-09 Makoto Nagashima Back-biased face target sputtering based liquid crystal display device
JP2006071606A (en) * 2004-09-06 2006-03-16 Lintec Corp Magnetic object detecting device
JP4678481B2 (en) * 2004-10-27 2011-04-27 アイシン精機株式会社 Superconducting magnetic field generator, sputter gun, and sputtering film forming apparatus
US20070084716A1 (en) * 2005-10-16 2007-04-19 Makoto Nagashima Back-biased face target sputtering based high density non-volatile data storage
US20070084717A1 (en) * 2005-10-16 2007-04-19 Makoto Nagashima Back-biased face target sputtering based high density non-volatile caching data storage
WO2007046244A1 (en) * 2005-10-18 2007-04-26 Ulvac, Inc. Sputtering apparatus
US20070205096A1 (en) * 2006-03-06 2007-09-06 Makoto Nagashima Magnetron based wafer processing
GB0607300D0 (en) * 2006-04-11 2006-05-24 Sensor Technology Ltd Measuring physical quantities
US8454810B2 (en) * 2006-07-14 2013-06-04 4D-S Pty Ltd. Dual hexagonal shaped plasma source
US8308915B2 (en) * 2006-09-14 2012-11-13 4D-S Pty Ltd. Systems and methods for magnetron deposition
JP5352878B2 (en) * 2008-03-31 2013-11-27 公立大学法人高知工科大学 Display substrate, method for manufacturing the same, and display device
US9347129B2 (en) * 2011-12-09 2016-05-24 Seagate Technology Llc Interchangeable magnet pack
US10573500B2 (en) 2011-12-09 2020-02-25 Seagate Technology Llc Interchangeable magnet pack
CN107076582B (en) * 2015-04-23 2019-04-26 三菱电机株式会社 The manufacturing method of rotation detection device and rotation detection device
JP7203490B2 (en) 2017-09-29 2023-01-13 昭和電工株式会社 Magnetic sensor assembly and magnetic sensor assembly manufacturing method
WO2019176684A1 (en) * 2018-03-16 2019-09-19 ソニー株式会社 Orientation device, method for manufacturing magnetic recording medium, and magnetic recording medium
US12038275B2 (en) * 2020-04-01 2024-07-16 Mitsubishi Electric Corporation Power generation element, and magnetic sensor, encoder, and motor using the same
CN112712995A (en) * 2020-12-18 2021-04-27 成都佳驰电子科技有限公司 Preparation method of high-orientation magnetic wave-absorbing film

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US4236946A (en) * 1978-03-13 1980-12-02 International Business Machines Corporation Amorphous magnetic thin films with highly stable easy axis
US4222517A (en) * 1978-09-18 1980-09-16 Samuel Cornelious Evans Magnetic marker
US4484184A (en) * 1979-04-23 1984-11-20 Allied Corporation Amorphous antipilferage marker
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US4980670A (en) * 1987-11-04 1990-12-25 Sensormatic Electronics Corporation Deactivatable E.A.S. marker having a step change in magnetic flux

Also Published As

Publication number Publication date
DE69102324T2 (en) 1994-10-27
DK0448114T5 (en) 1994-10-24
EP0448114A1 (en) 1991-09-25
DE69102324T4 (en) 1995-10-19
US5181020A (en) 1993-01-19
JPH04218905A (en) 1992-08-10
EP0448114B1 (en) 1994-06-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee